I don't think that kindergarten (or 1st grade) is too early for playdates, but it was for ds1. He's quite an introvert, so after playing with and just being around kids for a full day of kindergarten, he was done. I'm an extrovert and wanted to be social, but I've turned down many offers because it's just more than he wants. Don't assume the moms don't like you or your child. I worry that others assume that about me.Ds1 just needs his time to hold his car tournaments and play with ds2&3